EP0485282B1 - Dispositif de protection d'une unité de traitement de signaux électroniques contre des perturbations électromagnétiques - Google Patents
Dispositif de protection d'une unité de traitement de signaux électroniques contre des perturbations électromagnétiques Download PDFInfo
- Publication number
- EP0485282B1 EP0485282B1 EP19910402970 EP91402970A EP0485282B1 EP 0485282 B1 EP0485282 B1 EP 0485282B1 EP 19910402970 EP19910402970 EP 19910402970 EP 91402970 A EP91402970 A EP 91402970A EP 0485282 B1 EP0485282 B1 EP 0485282B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- enclosure
- chimney
- connection
- conductive
- wall
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 230000001681 protective effect Effects 0.000 claims 4
- 238000012216 screening Methods 0.000 claims 2
- 230000005540 biological transmission Effects 0.000 description 14
- 239000004020 conductor Substances 0.000 description 6
- 238000000429 assembly Methods 0.000 description 5
- 230000008054 signal transmission Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K9/00—Screening of apparatus or components against electric or magnetic fields
- H05K9/0007—Casings
- H05K9/0018—Casings with provisions to reduce aperture leakages in walls, e.g. terminals, connectors, cables
Definitions
- the present invention relates to a device for protection of an electronic signal processing unit against electromagnetic interference.
- An object of the invention is to propose a device protection allowing a simple and fast connection transmission cable while preventing penetration of electromagnetic interference inside the enclosure protection.
- a device for protection against electromagnetic interference from a processing unit of electronic signals comprising a series of subsets treatment
- this device comprising a conductive enclosure providing electromagnetic shielding and comprising connection means
- the connection means include terminals for connection carried by a wall part forming a setback towards the inside of the enclosure and arranged in openings made in the wall of the enclosure and having a maximum dimension not destroying the shielding to a required degree of protection against electromagnetic interference, each connection terminal being disposed in an opening with pins emerging on both sides of the openings and a housing conductor connected to said wall portion.
- connection terminals are used to connect a limited number of conductors to the processing unit and we ensure total continuity shielding by connecting the processing unit to the terminals of connection using shielded connecting cables including the shield is connected to the conductive box of the terminals of connection.
- the recess forms a housing in which the cables of transmission can easily be introduced, in particular when the speaker is pressed against a wall or against another enclosure.
- a processing unit comprising a series of sub treatment units fixed to a wall of the enclosure the one below the other, at least one terminal of connection associated with each subset and arranged substantially at the level of the subset to which it is associated.
- the device includes a conductive chimney electrically connected to the enclosure and partially formed by the wall part carrying the connection terminals, the chimney having at least one end opening to the outside of the enclosure so that from an electromagnetic point of view the interior of the fireplace is exterior to the enclosure, and the chimney has access hatches to the level of connection terminals on an internal wall of the enclosure.
- the chimney forms a housing for the transmission cable in an area outside the electromagnetic shielding of the enclosure so that the transmission cable is held upstream of the terminals connection and thus avoiding subjecting these terminals to connection to mechanical constraints.
- the device according to the invention comprises a conductive enclosure 1 of form generally parallelepiped, for example an enclosure made by welding solid or perforated sheets on a metal profile structure.
- the conductive enclosure 1 comprises a pivoting panel 3 on which are fixed sub-assemblies 3 of a processing unit of electronic signals. Each subset has a series of treatment cards which must be connected to a signal transmission cable 4 comprising a multiplicity of conductors.
- a conductive chimney 5 arranged inside the enclosure 1 in a corner of this and electrically connected to enclosure 1.
- the chimney 5 is for example produced by welding an L-shaped profile to two walls of the enclosure adjacent to an angle thereof.
- the chimney 5 is arranged vertically and leads to the upper ends and lower of the enclosure 1. It will be noted that according to a section, the chimney 5, and the openings through which it leads to the upper side and the lower side of enclosure 1, may have a higher maximum dimension to the maximum authorized dimension taking into account the degree of protection that one wishes to obtain against disturbances electromagnetic. Indeed, from an electromagnetic point of view, inside the chimney 5 is actually outside the enclosure.
- one of the walls of the chimney 5 internal to the enclosure 1 has one or more openings 6, openings rectangular in the illustrated embodiment, of which the maximum dimension, a diagonal in the example illustrated, is smaller than the size allowed so as not to destroy the shielding formed by this wall of the chimney 5 to the degree protection required against electromagnetic interference.
- a generally designated connection terminal at 7 is arranged in each opening 6 and has a insulating body 8 in which pins are arranged conductive 9 which open on either side of the openings 6.
- pins 9 are female pins and the insulating body 8 is adapted to receive a plug 10 fitted with male pins.
- Connection terminals 7 further comprise a conductive housing 11 connected to the chimney wall.
- the conductive housing 11 comprises a part tubular engaged in the opening 6 and a fixing lug bearing on one side of the wall, the housing being locked when inserting a fitted plug of screws on the inside of the chimney.
- the terminals of connection are connected to a subset 3 of corresponding level by small connecting cables 12 which extend substantially horizontally and allow so easy identification of the subset to which they are related.
- the conductors of the transmission cable 4 are subdivided into connected groups to a card (not shown) identical to card 10 and plugged into body part 8 projecting inside of the chimney 5.
- the chimney 5 comprises of preferably access hatches 13 at the terminals connection on a wall of the chimney 5 internal to the enclosure. These access hatches 13 are of course equipped an electromagnetic seal or make baffles ensuring continuity of the shielding produced by the wall matching chimney 5.
- Connection plugs can have any form appropriate to the standards in force. They can also be mounted on a removable plate similar to the plate 13. Such an arrangement facilitates connection cables in the chimney.
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
- Details Of Connecting Devices For Male And Female Coupling (AREA)
- Details Of Indoor Wiring (AREA)
Description
- la figure 1 est une vue en perspective schématique d'un dispositif selon l'invention,
- la figure 2 est une vue en perspective d'une partie du dispositif selon l'invention,
- la figure 3 est une vue en coupe selon la ligne III-III de la figure 2.
Claims (4)
- Dispositif de protection contre des/électromagnétiques d'une unité de traitement de signaux électroniques comportant une série de sous-ensembles de traitement (3), ce dispositif comprenant une enceinte conductrice (1) assurant un blindage électromagnétique et comportant des moyens de raccordement, caractérisé en ce que les moyens de raccordement comprennent des bornes de connexion (7) portées par une partie de paroi formant un décrochement vers l'intérieur de l'enceinte et disposées dans des ouvertures (6) réalisées dans la paroi de l'enceinte et ayant une dimension maximale ne détruisant pas le blindage à un degré de protection requis contre les perturbations électromagnétiques, chaque borne de connexion (7) étant disposée dans une ouverture (6) avec des broches (9) débouchant de part et d'autre des ouvertures et un boítier conducteur (11) relié à ladite partie de paroi.
- Dispositif de protection selon la revendication 1, caractérisé en ce que chaque borne de connexion (7) associée à chaque sous-ensemble est disposée sensiblement au niveau du sous-ensemble auquel elle est associée.
- Dispositif de protection selon l'une des revendications 1 ou 2, caractérisé en ce qu'il comporte une cheminée conductrice (1) électriquement reliée à l'enceinte et formée partiellement par la partie de paroi comportant des bornes de connexion, la cheminée ayant au moins une extrémité débouchant à l'extérieur de l'enceinte de sorte que du point de vue électromagnétique l'intérieur de la cheminée est extérieur à l'enceinte, et en ce que la cheminée comporte des trappes d'accès (13) au niveau des bornes de connexion (7) sur une paroi interne à l'enceinte.
- Dispositif de protection selon la revendication 3, caractérisé en ce que la cheminée (5) est verticale et débouche aux extrémités supérieure et inférieure de l'enceinte.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9013798 | 1990-11-07 | ||
FR9013798A FR2668877B1 (fr) | 1990-11-07 | 1990-11-07 | Dispositif de protection d'une unite de traitement de signaux electroniques contre des perturbations electromagnetiques. |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0485282A1 EP0485282A1 (fr) | 1992-05-13 |
EP0485282B1 true EP0485282B1 (fr) | 1999-01-27 |
Family
ID=9401931
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19910402970 Expired - Lifetime EP0485282B1 (fr) | 1990-11-07 | 1991-11-06 | Dispositif de protection d'une unité de traitement de signaux électroniques contre des perturbations électromagnétiques |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0485282B1 (fr) |
DE (1) | DE69130824T2 (fr) |
DK (1) | DK0485282T3 (fr) |
ES (1) | ES2128312T3 (fr) |
FR (1) | FR2668877B1 (fr) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5370553A (en) * | 1993-03-12 | 1994-12-06 | At&T Corp. | Adjustable terminations in equipment housing for cables |
IT1264644B1 (it) * | 1993-07-02 | 1996-10-04 | Alcatel Italia | Metodo per permettere lo scambio di informazioni fra processi attraverso un dispositivo di comunicazione |
GB2327182B (en) * | 1997-07-14 | 2001-05-02 | Dsc Telecom Lp | A housing for an equipment rack |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4480880A (en) * | 1983-08-11 | 1984-11-06 | Westinghouse Electric Corp. | Slide and swing chassis assembly for electronic equipment |
US4656313A (en) * | 1983-12-19 | 1987-04-07 | General Signal Corporation | EMI/EMP electrical cable penetration seal |
GB2217520B (en) * | 1988-04-08 | 1991-10-09 | Stc Plc | Electronic equipment practice |
FR2652229B1 (fr) * | 1989-09-19 | 1991-11-15 | Bull Sa | Ensemble de blindage pour un bloc collecteur relie a un equipement electrique place a l'interieur d'un chassis. |
-
1990
- 1990-11-07 FR FR9013798A patent/FR2668877B1/fr not_active Expired - Fee Related
-
1991
- 1991-11-06 DE DE1991630824 patent/DE69130824T2/de not_active Expired - Fee Related
- 1991-11-06 EP EP19910402970 patent/EP0485282B1/fr not_active Expired - Lifetime
- 1991-11-06 DK DK91402970T patent/DK0485282T3/da active
- 1991-11-06 ES ES91402970T patent/ES2128312T3/es not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
FR2668877A1 (fr) | 1992-05-07 |
DE69130824D1 (de) | 1999-03-11 |
EP0485282A1 (fr) | 1992-05-13 |
FR2668877B1 (fr) | 1996-08-02 |
DE69130824T2 (de) | 1999-08-19 |
DK0485282T3 (da) | 1999-09-13 |
ES2128312T3 (es) | 1999-05-16 |
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